When new operating systems gets designed today, great systems such as Amiga, Atari and VMS, seems to get overlooked in regard to their original features not found on other OSes. It might be time to collect and categorize those special unique features under the great/lost ideas wiki, so new OSes don't have to re-invent the wheel and re-innovate.

Finally, someone is pointing out all the great ideas Amiga had that still haven't been implemented, especially datatypes and virtual directories. Commodore's engineering department did some brilliant things with that machine.

This is a really, really nice article that deserves a lot more attention (also because of the other OS's, but especially because of the Amiga).

One thing to add to Amiga: the GUI and command-line interface were smoothly integrated in the system. This is unlike Windows, where one couldn't launch windows programs from the command-line (can they now? I don't know); unline Mac OS classic, where there WAS no command-line; unlike Mac OSX, where the manner of launching programs from the command line is counterintuitive; unlike *nix, where the GUI is a later add-on and behaves that way.